http://hl7.org/fhir/StructureDefinition/questionnaireresponse-signature|4.0.1

Represents a wet or electronic signature for either the form overall or for the question or item it's associated with.
NameFlagsCardTypeDescription & Constraints
Extension
0..*A signature attesting to the content
 
extension
?..0
 
url
?..?
 
value[x] *
1..?
 
 
valueSignature *
1..?Signature